# Redmine - project management software # Copyright (C) 2006-2011 Jean-Philippe Lang # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. module Redmine module Helpers # Simple class to handle gantt chart data class Gantt include ERB::Util include Redmine::I18n # :nodoc: # Some utility methods for the PDF export class PDF MaxCharactorsForSubject = 45 TotalWidth = 280 LeftPaneWidth = 100 def self.right_pane_width TotalWidth - LeftPaneWidth end end attr_reader :year_from, :month_from, :date_from, :date_to, :zoom, :months, :truncated, :max_rows attr_accessor :query attr_accessor :project attr_accessor :view def initialize(options={}) options = options.dup if options[:year] && options[:year].to_i >0 @year_from = options[:year].to_i if options[:month] && options[:month].to_i >=1 && options[:month].to_i <= 12 @month_from = options[:month].to_i else @month_from = 1 end else @month_from ||= Date.today.month @year_from ||= Date.today.year end zoom = (options[:zoom] || User.current.pref[:gantt_zoom]).to_i @zoom = (zoom > 0 && zoom < 5) ? zoom : 2 months = (options[:months] || User.current.pref[:gantt_months]).to_i @months = (months > 0 && months < 25) ? months : 6 # Save gantt parameters as user preference (zoom and months count) if (User.current.logged? && (@zoom != User.current.pref[:gantt_zoom] || @months != User.current.pref[:gantt_months])) User.current.pref[:gantt_zoom], User.current.pref[:gantt_months] = @zoom, @months User.current.preference.save end @date_from = Date.civil(@year_from, @month_from, 1) @date_to = (@date_from >> @months) - 1 @subjects = '' @lines = '' @number_of_rows = nil @issue_ancestors = [] @truncated = false if options.has_key?(:max_rows) @max_rows = options[:max_rows] else @max_rows = Setting.gantt_items_limit.blank? ? nil : Setting.gantt_items_limit.to_i end end def common_params { :controller => 'gantts', :action => 'show', :project_id => @project } end def params common_params.merge({ :zoom => zoom, :year => year_from, :month => month_from, :months => months }) end def params_previous common_params.merge({:year => (date_from << months).year, :month => (date_from << months).month, :zoom => zoom, :months => months }) end def params_next common_params.merge({:year => (date_from >> months).year, :month => (date_from >> months).month, :zoom => zoom, :months => months }) end # Returns the number of rows that will be rendered on the Gantt chart def number_of_rows return @number_of_rows if @number_of_rows rows = projects.inject(0) {|total, p| total += number_of_rows_on_project(p)} rows > @max_rows ? @max_rows : rows end # Returns the number of rows that will be used to list a project on # the Gantt chart. This will recurse for each subproject. def number_of_rows_on_project(project) return 0 unless projects.include?(project) count = 1 count += project_issues(project).size count += project_versions(project).size count end # Renders the subjects of the Gantt chart, the left side. def subjects(options={}) render(options.merge(:only => :subjects)) unless @subjects_rendered @subjects end # Renders the lines of the Gantt chart, the right side def lines(options={}) render(options.merge(:only => :lines)) unless @lines_rendered @lines end # Returns issues that will be rendered def issues @issues ||= @query.issues( :include => [:assigned_to, :tracker, :priority, :category, :fixed_version], :order => "#{Project.table_name}.lft ASC, #{Issue.table_name}.id ASC", :limit => @max_rows ) end # Return all the project nodes that will be displayed def projects return @projects if @projects ids = issues.collect(&:project).uniq.collect(&:id) if ids.any? # All issues projects and their visible ancestors @projects = Project.visible.all( :joins => "LEFT JOIN #{Project.table_name} child ON #{Project.table_name}.lft <= child.lft AND #{Project.table_name}.rgt >= child.rgt", :conditions => ["child.id IN (?)", ids], :order => "#{Project.table_name}.lft ASC" ).uniq else @projects = [] end end # Returns the issues that belong to +project+ def project_issues(project) @issues_by_project ||= issues.group_by(&:project) @issues_by_project[project] || [] end # Returns the distinct versions of the issues that belong to +project+ def project_versions(project) project_issues(project).collect(&:fixed_version).compact.uniq end # Returns the issues that belong to +project+ and are assigned to +version+ def version_issues(project, version) project_issues(project).select {|issue| issue.fixed_version == version} end def render(options={}) options = {:top => 0, :top_increment => 20, :indent_increment => 20, :render => :subject, :format => :html}.merge(options) indent = options[:indent] || 4 @subjects = '' unless options[:only] == :lines @lines = '' unless options[:only] == :subjects @number_of_rows = 0 Project.project_tree(projects) do |project, level| options[:indent] = indent + level * options[:indent_increment] render_project(project, options) break if abort? end @subjects_rendered = true unless options[:only] == :lines @lines_rendered = true unless options[:only] == :subjects render_end(options) end def render_project(project, options={}) subject_for_project(project, options) unless options[:only] == :lines line_for_project(project, options) unless options[:only] == :subjects options[:top] += options[:top_increment] options[:indent] += options[:indent_increment] @number_of_rows += 1 return if abort? issues = project_issues(project).select {|i| i.fixed_version.nil?} sort_issues!(issues) if issues render_issues(issues, options) return if abort? end versions = project_versions(project) versions.each do |version| render_version(project, version, options) end # Remove indent to hit the next sibling options[:indent] -= options[:indent_increment] end def render_issues(issues, options={}) @issue_ancestors = [] issues.each do |i| subject_for_issue(i, options) unless options[:only] == :lines line_for_issue(i, options) unless options[:only] == :subjects options[:top] += options[:top_increment] @number_of_rows += 1 break if abort? end options[:indent] -= (options[:indent_increment] * @issue_ancestors.size) end def render_version(project, version, options={}) # Version header subject_for_version(version, options) unless options[:only] == :lines line_for_version(version, options) unless options[:only] == :subjects options[:top] += options[:top_increment] @number_of_rows += 1 return if abort? issues = version_issues(project, version) if issues sort_issues!(issues) # Indent issues options[:indent] += options[:indent_increment] render_issues(issues, options) options[:indent] -= options[:indent_increment] end end def render_end(options={}) case options[:format] when :pdf options[:pdf].Line(15, options[:top], PDF::TotalWidth, options[:top]) end end def subject_for_project(project, options) case options[:format] when :html subject = "" subject << view.link_to_project(project) subject << '' html_subject(options, subject, :css => "project-name") when :image image_subject(options, project.name) when :pdf pdf_new_page?(options) pdf_subject(options, project.name) end end def line_for_project(project, options) # Skip versions that don't have a start_date or due date if project.is_a?(Project) && project.start_date && project.due_date options[:zoom] ||= 1 options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom] coords = coordinates(project.start_date, project.due_date, nil, options[:zoom]) label = h(project) case options[:format] when :html html_task(options, coords, :css => "project task", :label => label, :markers => true) when :image image_task(options, coords, :label => label, :markers => true, :height => 3) when :pdf pdf_task(options, coords, :label => label, :markers => true, :height => 0.8) end else ActiveRecord::Base.logger.debug "Gantt#line_for_project was not given a project with a start_date" '' end end def subject_for_version(version, options) case options[:format] when :html subject = "" subject << view.link_to_version(version) subject << '' html_subject(options, subject, :css => "version-name") when :image image_subject(options, version.to_s_with_project) when :pdf pdf_new_page?(options) pdf_subject(options, version.to_s_with_project) end end def line_for_version(version, options) # Skip versions that don't have a start_date if version.is_a?(Version) && version.start_date && version.due_date options[:zoom] ||= 1 options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom] coords = coordinates(version.start_date, version.due_date, version.completed_pourcent, options[:zoom]) label = "#{h version } #{h version.completed_pourcent.to_i.to_s}%" label = h("#{version.project} -") + label unless @project && @project == version.project case options[:format] when :html html_task(options, coords, :css => "version task", :label => label, :markers => true) when :image image_task(options, coords, :label => label, :markers => true, :height => 3) when :pdf pdf_task(options, coords, :label => label, :markers => true, :height => 0.8) end else ActiveRecord::Base.logger.debug "Gantt#line_for_version was not given a version with a start_date" '' end end def subject_for_issue(issue, options) while @issue_ancestors.any? && !issue.is_descendant_of?(@issue_ancestors.last) @issue_ancestors.pop options[:indent] -= options[:indent_increment] end output = case options[:format] when :html css_classes = '' css_classes << ' issue-overdue' if issue.overdue? css_classes << ' issue-behind-schedule' if issue.behind_schedule? css_classes << ' icon icon-issue' unless Setting.gravatar_enabled? && issue.assigned_to subject = "" if issue.assigned_to.present? assigned_string = l(:field_assigned_to) + ": " + issue.assigned_to.name subject << view.avatar(issue.assigned_to, :class => 'gravatar icon-gravatar', :size => 10, :title => assigned_string).to_s end subject << view.link_to_issue(issue) subject << '' html_subject(options, subject, :css => "issue-subject", :title => issue.subject) + "\n" when :image image_subject(options, issue.subject) when :pdf pdf_new_page?(options) pdf_subject(options, issue.subject) end unless issue.leaf? @issue_ancestors << issue options[:indent] += options[:indent_increment] end output end def line_for_issue(issue, options) # Skip issues that don't have a due_before (due_date or version's due_date) if issue.is_a?(Issue) && issue.due_before coords = coordinates(issue.start_date, issue.due_before, issue.done_ratio, options[:zoom]) label = "#{ issue.status.name } #{ issue.done_ratio }%" case options[:format] when :html html_task(options, coords, :css => "task " + (issue.leaf? ? 'leaf' : 'parent'), :label => label, :issue => issue, :markers => !issue.leaf?) when :image image_task(options, coords, :label => label) when :pdf pdf_task(options, coords, :label => label) end else ActiveRecord::Base.logger.debug "GanttHelper#line_for_issue was not given an issue with a due_before" '' end end # Generates a gantt image # Only defined if RMagick is avalaible def to_image(format='PNG') date_to = (@date_from >> @months)-1 show_weeks = @zoom > 1 show_days = @zoom > 2 subject_width = 400 header_heigth = 18 # width of one day in pixels zoom = @zoom*2 g_width = (@date_to - @date_from + 1)*zoom g_height = 20 * number_of_rows + 30 headers_heigth = (show_weeks ? 2*header_heigth : header_heigth) height = g_height + headers_heigth imgl = Magick::ImageList.new imgl.new_image(subject_width+g_width+1, height) gc = Magick::Draw.new # Subjects gc.stroke('transparent') subjects(:image => gc, :top => (headers_heigth + 20), :indent => 4, :format => :image) # Months headers month_f = @date_from left = subject_width @months.times do width = ((month_f >> 1) - month_f) * zoom gc.fill('white') gc.stroke('grey') gc.stroke_width(1) gc.rectangle(left, 0, left + width, height) gc.fill('black') gc.stroke('transparent') gc.stroke_width(1) gc.text(left.round + 8, 14, "#{month_f.year}-#{month_f.month}") left = left + width month_f = month_f >> 1 end # Weeks headers if show_weeks left = subject_width height = header_heigth if @date_from.cwday == 1 # date_from is monday week_f = date_from else # find next monday after date_from week_f = @date_from + (7 - @date_from.cwday + 1) width = (7 - @date_from.cwday + 1) * zoom gc.fill('white') gc.stroke('grey') gc.stroke_width(1) gc.rectangle(left, header_heigth, left + width, 2*header_heigth + g_height-1) left = left + width end while week_f <= date_to width = (week_f + 6 <= date_to) ? 7 * zoom : (date_to - week_f + 1) * zoom gc.fill('white') gc.stroke('grey') gc.stroke_width(1) gc.rectangle(left.round, header_heigth, left.round + width, 2*header_heigth + g_height-1) gc.fill('black') gc.stroke('transparent') gc.stroke_width(1) gc.text(left.round + 2, header_heigth + 14, week_f.cweek.to_s) left = left + width week_f = week_f+7 end end # Days details (week-end in grey) if show_days left = subject_width height = g_height + header_heigth - 1 wday = @date_from.cwday (date_to - @date_from + 1).to_i.times do width = zoom gc.fill(wday == 6 || wday == 7 ? '#eee' : 'white') gc.stroke('#ddd') gc.stroke_width(1) gc.rectangle(left, 2*header_heigth, left + width, 2*header_heigth + g_height-1) left = left + width wday = wday + 1 wday = 1 if wday > 7 end end # border gc.fill('transparent') gc.stroke('grey') gc.stroke_width(1) gc.rectangle(0, 0, subject_width+g_width, headers_heigth) gc.stroke('black') gc.rectangle(0, 0, subject_width+g_width, g_height+ headers_heigth-1) # content top = headers_heigth + 20 gc.stroke('transparent') lines(:image => gc, :top => top, :zoom => zoom, :subject_width => subject_width, :format => :image) # today red line if Date.today >= @date_from and Date.today <= date_to gc.stroke('red') x = (Date.today-@date_from+1)*zoom + subject_width gc.line(x, headers_heigth, x, headers_heigth + g_height-1) end gc.draw(imgl) imgl.format = format imgl.to_blob end if Object.const_defined?(:Magick) def to_pdf if l(:general_pdf_encoding).upcase != 'UTF-8' pdf = ::Redmine::Export::PDF::IFPDF.new(current_language) else pdf = ::Redmine::Export::PDF::ITCPDF.new(current_language) end pdf.SetTitle("#{l(:label_gantt)} #{project}") pdf.alias_nb_pages pdf.footer_date = format_date(Date.today) pdf.AddPage("L") pdf.SetFontStyle('B',12) pdf.SetX(15) pdf.RDMCell(PDF::LeftPaneWidth, 20, project.to_s) pdf.Ln pdf.SetFontStyle('B',9) subject_width = PDF::LeftPaneWidth header_heigth = 5 headers_heigth = header_heigth show_weeks = false show_days = false if self.months < 7 show_weeks = true headers_heigth = 2*header_heigth if self.months < 3 show_days = true headers_heigth = 3*header_heigth end end g_width = PDF.right_pane_width zoom = (g_width) / (self.date_to - self.date_from + 1) g_height = 120 t_height = g_height + headers_heigth y_start = pdf.GetY # Months headers month_f = self.date_from left = subject_width height = header_heigth self.months.times do width = ((month_f >> 1) - month_f) * zoom pdf.SetY(y_start) pdf.SetX(left) pdf.RDMCell(width, height, "#{month_f.year}-#{month_f.month}", "LTR", 0, "C") left = left + width month_f = month_f >> 1 end # Weeks headers if show_weeks left = subject_width height = header_heigth if self.date_from.cwday == 1 # self.date_from is monday week_f = self.date_from else # find next monday after self.date_from week_f = self.date_from + (7 - self.date_from.cwday + 1) width = (7 - self.date_from.cwday + 1) * zoom-1 pdf.SetY(y_start + header_heigth) pdf.SetX(left) pdf.RDMCell(width + 1, height, "", "LTR") left = left + width+1 end while week_f <= self.date_to width = (week_f + 6 <= self.date_to) ? 7 * zoom : (self.date_to - week_f + 1) * zoom pdf.SetY(y_start + header_heigth) pdf.SetX(left) pdf.RDMCell(width, height, (width >= 5 ? week_f.cweek.to_s : ""), "LTR", 0, "C") left = left + width week_f = week_f+7 end end # Days headers if show_days left = subject_width height = header_heigth wday = self.date_from.cwday pdf.SetFontStyle('B',7) (self.date_to - self.date_from + 1).to_i.times do width = zoom pdf.SetY(y_start + 2 * header_heigth) pdf.SetX(left) pdf.RDMCell(width, height, day_name(wday).first, "LTR", 0, "C") left = left + width wday = wday + 1 wday = 1 if wday > 7 end end pdf.SetY(y_start) pdf.SetX(15) pdf.RDMCell(subject_width+g_width-15, headers_heigth, "", 1) # Tasks top = headers_heigth + y_start options = { :top => top, :zoom => zoom, :subject_width => subject_width, :g_width => g_width, :indent => 0, :indent_increment => 5, :top_increment => 5, :format => :pdf, :pdf => pdf } render(options) pdf.Output end private def coordinates(start_date, end_date, progress, zoom=nil) zoom ||= @zoom coords = {} if start_date && end_date && start_date < self.date_to && end_date > self.date_from if start_date > self.date_from coords[:start] = start_date - self.date_from coords[:bar_start] = start_date - self.date_from else coords[:bar_start] = 0 end if end_date < self.date_to coords[:end] = end_date - self.date_from coords[:bar_end] = end_date - self.date_from + 1 else coords[:bar_end] = self.date_to - self.date_from + 1 end if progress progress_date = start_date + (end_date - start_date + 1) * (progress / 100.0) if progress_date > self.date_from && progress_date > start_date if progress_date < self.date_to coords[:bar_progress_end] = progress_date - self.date_from else coords[:bar_progress_end] = self.date_to - self.date_from + 1 end end if progress_date < Date.today late_date = [Date.today, end_date].min if late_date > self.date_from && late_date > start_date if late_date < self.date_to coords[:bar_late_end] = late_date - self.date_from + 1 else coords[:bar_late_end] = self.date_to - self.date_from + 1 end end end end end # Transforms dates into pixels witdh coords.keys.each do |key| coords[key] = (coords[key] * zoom).floor end coords end # Sorts a collection of issues by start_date, due_date, id for gantt rendering def sort_issues!(issues) issues.sort! { |a, b| gantt_issue_compare(a, b, issues) } end # TODO: top level issues should be sorted by start date def gantt_issue_compare(x, y, issues) if x.root_id == y.root_id x.lft <=> y.lft else x.root_id <=> y.root_id end end def current_limit if @max_rows @max_rows - @number_of_rows else nil end end def abort? if @max_rows && @number_of_rows >= @max_rows @truncated = true end end def pdf_new_page?(options) if options[:top] > 180 options[:pdf].Line(15, options[:top], PDF::TotalWidth, options[:top]) options[:pdf].AddPage("L") options[:top] = 15 options[:pdf].Line(15, options[:top] - 0.1, PDF::TotalWidth, options[:top] - 0.1) end end def html_subject(params, subject, options={}) style = "position: absolute;top:#{params[:top]}px;left:#{params[:indent]}px;" style << "width:#{params[:subject_width] - params[:indent]}px;" if params[:subject_width] output = view.content_tag 'div', subject, :class => options[:css], :style => style, :title => options[:title] @subjects << output output end def pdf_subject(params, subject, options={}) params[:pdf].SetY(params[:top]) params[:pdf].SetX(15) char_limit = PDF::MaxCharactorsForSubject - params[:indent] params[:pdf].RDMCell(params[:subject_width]-15, 5, (" " * params[:indent]) + subject.to_s.sub(/^(.{#{char_limit}}[^\s]*\s).*$/, '\1 (...)'), "LR") params[:pdf].SetY(params[:top]) params[:pdf].SetX(params[:subject_width]) params[:pdf].RDMCell(params[:g_width], 5, "", "LR") end def image_subject(params, subject, options={}) params[:image].fill('black') params[:image].stroke('transparent') params[:image].stroke_width(1) params[:image].text(params[:indent], params[:top] + 2, subject) end def html_task(params, coords, options={}) output = '' # Renders the task bar, with progress and late if coords[:bar_start] && coords[:bar_end] output << "
 
" if coords[:bar_late_end] output << "
 
" end if coords[:bar_progress_end] output << "
 
" end end # Renders the markers if options[:markers] if coords[:start] output << "
 
" end if coords[:end] output << "
 
" end end # Renders the label on the right if options[:label] output << "
" output << options[:label] output << "
" end # Renders the tooltip if options[:issue] && coords[:bar_start] && coords[:bar_end] output << "
" output << '' output << view.render_issue_tooltip(options[:issue]) output << "
" end @lines << output output end def pdf_task(params, coords, options={}) height = options[:height] || 2 # Renders the task bar, with progress and late if coords[:bar_start] && coords[:bar_end] params[:pdf].SetY(params[:top]+1.5) params[:pdf].SetX(params[:subject_width] + coords[:bar_start]) params[:pdf].SetFillColor(200,200,200) params[:pdf].RDMCell(coords[:bar_end] - coords[:bar_start], height, "", 0, 0, "", 1) if coords[:bar_late_end] params[:pdf].SetY(params[:top]+1.5) params[:pdf].SetX(params[:subject_width] + coords[:bar_start]) params[:pdf].SetFillColor(255,100,100) params[:pdf].RDMCell(coords[:bar_late_end] - coords[:bar_start], height, "", 0, 0, "", 1) end if coords[:bar_progress_end] params[:pdf].SetY(params[:top]+1.5) params[:pdf].SetX(params[:subject_width] + coords[:bar_start]) params[:pdf].SetFillColor(90,200,90) params[:pdf].RDMCell(coords[:bar_progress_end] - coords[:bar_start], height, "", 0, 0, "", 1) end end # Renders the markers if options[:markers] if coords[:start] params[:pdf].SetY(params[:top] + 1) params[:pdf].SetX(params[:subject_width] + coords[:start] - 1) params[:pdf].SetFillColor(50,50,200) params[:pdf].RDMCell(2, 2, "", 0, 0, "", 1) end if coords[:end] params[:pdf].SetY(params[:top] + 1) params[:pdf].SetX(params[:subject_width] + coords[:end] - 1) params[:pdf].SetFillColor(50,50,200) params[:pdf].RDMCell(2, 2, "", 0, 0, "", 1) end end # Renders the label on the right if options[:label] params[:pdf].SetX(params[:subject_width] + (coords[:bar_end] || 0) + 5) params[:pdf].RDMCell(30, 2, options[:label]) end end def image_task(params, coords, options={}) height = options[:height] || 6 # Renders the task bar, with progress and late if coords[:bar_start] && coords[:bar_end] params[:image].fill('#aaa') params[:image].rectangle(params[:subject_width] + coords[:bar_start], params[:top], params[:subject_width] + coords[:bar_end], params[:top] - height) if coords[:bar_late_end] params[:image].fill('#f66') params[:image].rectangle(params[:subject_width] + coords[:bar_start], params[:top], params[:subject_width] + coords[:bar_late_end], params[:top] - height) end if coords[:bar_progress_end] params[:image].fill('#00c600') params[:image].rectangle(params[:subject_width] + coords[:bar_start], params[:top], params[:subject_width] + coords[:bar_progress_end], params[:top] - height) end end # Renders the markers if options[:markers] if coords[:start] x = params[:subject_width] + coords[:start] y = params[:top] - height / 2 params[:image].fill('blue') params[:image].polygon(x-4, y, x, y-4, x+4, y, x, y+4) end if coords[:end] x = params[:subject_width] + coords[:end] + params[:zoom] y = params[:top] - height / 2 params[:image].fill('blue') params[:image].polygon(x-4, y, x, y-4, x+4, y, x, y+4) end end # Renders the label on the right if options[:label] params[:image].fill('black') params[:image].text(params[:subject_width] + (coords[:bar_end] || 0) + 5,params[:top] + 1, options[:label]) end end end end end